Answer
C∪D={1,2,3,5,7,9,10}
Work Step by Step
C={2,5,7,10}
D={1,3,5,7,9}
C∪D contains all elements in either C or D.
C∪D={1,2,3,5,7,9,10}
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 3 - Solving Inequalities - 3-8 Unions and Intersections of Sets - Practice and Problem-Solving Exercises - Page 218: 15
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